6631234543 has 4 divisors (see below), whose sum is σ = 6739943368. Its totient is φ = 6522525720.

The previous prime is 6631234531. The next prime is 6631234573. The reversal of 6631234543 is 3454321366.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3454321366 = 2 ⋅1727160683.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6631234543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6631234513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54354321 + ... + 54354442.

It is an arithmetic number, because the mean of its divisors is an integer number (1684985842).

Almost surely, 2^6631234543 is an apocalyptic number.

6631234543 is a deficient number, since it is larger than the sum of its proper divisors (108708825).

6631234543 is a wasteful number, since it uses less digits than its factorization.

6631234543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108708824.

The product of its digits is 155520, while the sum is 37.

The square root of 6631234543 is about 81432.3924676170. The cubic root of 6631234543 is about 1878.7318427137.

The spelling of 6631234543 in words is "six billion, six hundred thirty-one million, two hundred thirty-four thousand, five hundred forty-three".